It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err.

Freedom is not worth having if it does not include the freedom to make mistakes.

I claim to be a simple individual liable to err like any other fellow mortal. I own, however, that I have humility enough to confess my errors and to retrace my steps.

Strength does not come from physical capacity. It comes from an indomitable will.

You must not lose faith in humanity. Humanity is like an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty.

The greatness of humanity is not in being human, but in being humane.